Definition of LUMINANCE

brightness created by light reflected from a surface <the emerald had a pure, icy green luminance>
Synonyms burnish, gloss, luminance, luster (or lustre), polish, sheen
the quality or state of having or giving off light <the landscapes of the French painter Claude Lorraine have a unique luminance that no other artist has quite captured>
Antonyms blackness, dark, darkness, dullness (also dulness), duskiness

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